Timothy corners



(No Model.)

. T.. OONNERS.

APPARATUS FOR SHAPING METAL WARE.

N0. 601,825. Patented Apr 5,189.8.

5 G :D I Z, v EFL JI E a iT- H nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnc.

UNITE STATE PATENT OFFICE.

TIMOTHY CONNERS, or PORTLAND, CONNECTICUT, ASSIGNOR To THE AMERICANSTAMPING COMPANY, OF NEW YORK, N. Y.

APPARATUS FOR SHAPING METAL WARE.

SPECIFICATION forming part of Letters Patent NO. 601,825, dated April 5,1898.

Application filed May 17, 1897. 'Serial No. 636,872. (No model.)

To all whom it may concerns Be it known that I, TIMOTHY CoNNERs, acitizen of the United States, residing in Portland, MiddleseX county, inthe State of C011- necticut, have invented a certain new and usefulImprovement in Apparatus for Shaping Metal Ware; and I do hereby declarethat the following is a full and exact description thereof. [O Thepresent inventioninvolves an improvement upon the means disclosed in thepatent of F. H. Webster, dated June 24, 1890, No.

430,816. Said Webster patent describes generally the placing of themetal while in cylin- I 5 drical form between dies and expanding ittherein by compression upon an elastic filling, which may be acylindrical lump of india-rubber longer than the article and receivingthe strong pressure on the protruding portion.

I will describe my improvement as applied to the manufacture ofsaucepans having the top and bottom of equal size and swelled at themid-height.

The improvement is particularly described in the following specificationand pointed out in the claim. I V

The accompanying drawings form a part of this specification andrepresent what I consider the best means of carrying out-the inovention.

Figure 1 is a central vertical section with parts in the press beforethe operation of my invention. Fig. 2 is a similar view during theoperation of my invention. Fig. 3 is a plan 3 5 view, and Fig. 4 is acentral vertical section before the depression of the flange-holder.

The upper part of the rubber is indicated in dotted lines. Fig. 5 showsthe novel parts separately in detail. It is a vertical section. 0 Fig. 6is a central vertical section showing a modified form of the parts.

Similar letters of reference indicate corresponding parts in all thefigures where they appear.

A is the bed of a press, and B B are two intaglio dies, which togethermold the article to be shaped. They are formed separately and smoothlyfinished on their interiors to the required shape, but with space 0below for a bottom plate.

C is the bottom plate, applying within the mold in the obvious manner.

D is a stout ring which is dropped upon the slightly-tapered exterior ofthe parts 13 B.

E is a cylindrical mass of indiarubber which may be molded andvulcanized by the ordinary processes. It should be of such size "as toloosely fill the sheet-metal article in its cylindrical condition beforeit has been distended. It should be longer. than the interior of thearticle, so that there will be a sufficient quantity projecting at thetop to be pressed down'by the plunger or punch in the act of distendingthearticle.

M is the sheet-metal blank to be treated. It will be understood that ithas been previously brought to the required shape for the blank byannealing and drawing at one or more operations and that it is left witha considerable flange M at its upper edge. (See Fig. 4.)

G is the flange-holdingdie of a drawingpress, operated in the ordinarymanner to hold the flange M by compressing it strongly upon the upperfaces of the dies B B.

H is the punch, which, as usual with this class of presses, comes intoaction after the flange-die has taken a firm hold. This punchdie H actson the rubber E, depressing it strongly, which pressure is distributedthrough the elastic action of the rubber over the whole interior of thecylindrical portion M of the blank with the efiect to distend it. As thepunch H is depressed by the powerful action of the press (not shown) theoriginally cylindrical portion M of the blank is distended until it issupported by the dies B B, thus taking a corresponding form. At thecompletion of the operation the punch H and the flange-die G are againelevated and the parts below are withdrawn. To save time, another setof; removable parts with another blank may be introduced and thedie-press again operated, while the shaped article is liberated bylifting the ring D and separating the dies B B. The article issubsequently further advanced by trimming the flange, wiring, orotherwise treating the edge, applying the handle, and finishing by anydesired process for surfacing, &c.

The ring G performs two important functionsone by pressing in theordinary manner of this class of presses on the flange M, and therebyholding the ware immovably or controlling its movements and preventingthe formation of wrinkles, and another and radically different functionpeculiar to this invention by confining the upper portion of the rubberE and preventing its spreading laterally under the strong forceimpressed by the punch H and insuring that the force shall be utilizedin the distending of the ware.

In the form shown in Fig. 6, which may for some reasons be preferable tothat first shown, the intaglio-dies,which I will here designate I) I),perform the same duty as the parts 13 B, except that they are notprovided with hottoms. The plate 0 (the same letter as before with asupernumeral) is extended out under the dies. This figure also showsvariations in some of the detai1sthe exterior of the dies and the depthof the binding-ring. It will be understood that it may be worked in thesame press and subject to the action of the same flange-holder G andpunch-die H and that the action is the same as with the other form.

I attach importance to the removable bottom plate O, matching in thespace 0 in the separable dies B B, as shown, because in addition to itsproviding a continuous surface to mold the entire bottom, thus avoidingany showing thereon of the line of junction of the dies, it allowssufficient thickness for the inner parts of the dies at the bottom inexecutin g all ordinary and extraordinary forms. The raised bottom inFig. 6 allows the same stoutness of the base of the dies, but limits thecapacity of the machine to the execution of only one size of base on anygiven bed. The construction shown in my invention, Figs. 1 to 5,inclusive, is preferable because it allows a plane bed and ready changesof parts for every required size.

I claim as my invention In apparatus for the manufacture of swelledware, the externally-tapered dies B B, recessed to conjointly presentthe circular bottom space 0, a plate 0 adapted for said space, togetherwith the confining-ring D, and rubber filling E, in combination with thepunch 11 and flange-holding (lie G of a die-press, all arranged forjoint operation substantially as herein specified.

In testimony that I claim the invention above set forth I affix mysignature in presence of two witnesses.

TIMOTHY CONNERS.

lVitnesses:

ASAPH H. HALE, J No. 0. BARRY.

